123234219943 has 2 divisors, whose sum is σ = 123234219944. Its totient is φ = 123234219942.

The previous prime is 123234219929. The next prime is 123234220061. The reversal of 123234219943 is 349912432321.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 123234219943 - 2¹⁷ = 123234088871 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 123234219943.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (123234219923) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 61617109971 + 61617109972.

It is an arithmetic number, because the mean of its divisors is an integer number (61617109972).

Almost surely, 2^123234219943 is an apocalyptic number.

123234219943 is a deficient number, since it is larger than the sum of its proper divisors (1).

123234219943 is an equidigital number, since it uses as much as digits as its factorization.

123234219943 is an evil number, because the sum of its binary digits is even.

The product of its digits is 279936, while the sum is 43.

The spelling of 123234219943 in words is "one hundred twenty-three billion, two hundred thirty-four million, two hundred nineteen thousand, nine hundred forty-three".